@inproceedings{Wang2011,
  title={Viewpoint Invariant 3D Landmark Model Inference from Monocular 2D Images Using Higher-Order Priors},
  author={Chaohui Wang and Yun Zeng and Loic Simon and Ioannis Kakadiaris and Dimitris Samaras and Nikos Paragios},
  booktitle={International Conference on Computer Vision},
  pages={},
  year={2011},
  organization={IEEE}
}